\'II 



INTRODri TIoX. 



The average rain-fall, iiichidin;^ that in ilie lonu ol snow, Irom 

 1870to 1899 was 30.55 inches, (irand Kiveral b'lilton Street Bridge 

 is 8 feet above Lake ^Nlichiijan and 588 feet above tl»e sea. Tlie 

 eastern bluffs measure at the Stand I'ipe 170 feet almve Lake 

 Miehieran. 



Under these favorable climatic conditions we find treos and 

 lesser plants, such as the tulip-tree, mulberry, papaw, pepperidge, 

 Judas-tree, Kentucky coffee-tree, flowering dogwood, etc., which 

 belong to Ohio, Central Illinois, and even further south, maintain- 

 ing themselves in the Grand River Valley and the western part of 

 the State. 



It is in the valley of Grand River that the northern and 

 southern flora.s of the State overlap, as may be seen by the follow- 

 ino- lists: 



NORTHERN .SPECIE.S. 



Acer spicatuni. 

 Arctostaph3-los Uva-Ursi. 

 Cai-ex pauciflora. 

 tenuiflora. 

 Clintonla borealis. 

 Cornus CanadensLs. 

 Epilobium lineans. 

 Rriophorum gracile. 



viiKinatum. 



Erysimum cheiranthoides. 

 Juncus Canadensis coarctatus. 

 Lonicera oblongifoUa. 

 Polj'gonum cilinode. 

 Prunus pumila. 

 Ro.sa blanda. 

 Scirpus pauciflorus. 

 Taxus Canadensis. 



SOUTHERN SI^ECIES. 



.\xclfpias vertJciUaia. 

 .\simina triloba, 

 mephilia hirsuta. 

 Houtcloua raromosa. 

 (\irya alba. 



amara. 

 mlcrooarpa. 

 • porcina. 

 (.'aMSia Marylandica. 

 Cercls Canadensis. 

 Ohaerophyllum procumbens. 

 ColUnsia verna. 

 Cornus florid a. 



Coreopsis trlchosperma teuuiloba. 

 Desmodlum lUlnoense. 



?.f.-irvlan.1iciim. 



Eleocliarls olivacea. 



Eragrostis pectlnacea spectabilis. 



Erigenla bulbosa. 



Gyranocladus Canadensis. 



Hemicarpba subsquarrosa. 



Kuhnia eupatorioides. 



Liatris spicata. 



Llriodendron Tulipifera. 



Medeola Vlrginlana. 



Morus rubra. 



Nyssa sylvatica. 



Ptelea trlloliata. 



Silphium tereblnthinaceum. 



Solea concolor. 



Sporobolus cryptandrus, 



Svnthvris Houcrhtoniana. 



